YASKAWA SGD7S-****20A Series Product Manual page 457

12.2 Alarm Displays
12.2.2 Troubleshooting Alarms
Alarm Number:
Alarm Name
A.E42:
MECHATROLINK
Station Address
Setting Error
*4
A.E50
MECHATROLINK
Synchronization
Error
A.E51:
MECHATROLINK
Synchronization
Failed
*4
A.E60
Reception Error in
MECHATROLINK
Communications
12-38
Possible Cause
The station address is
outside of the setting
range.
Two or more stations
on the communica-
tions network have
the same address.
The WDT data in the
host controller was
not updated normally.
:
A failure occurred in
the SERVOPACK.
The WDT data at the
host controller was
not updated correctly
at the start of syn-
chronous communi-
cations, so
synchronous commu-
nications could not be
started.
A failure occurred in
the SERVOPACK.
MECHATROLINK wir-
ing is not correct.
A MECHATROLINK
:
data reception error
occurred due to
noise.
A failure occurred in
the SERVOPACK.
Confirmation
Check the setting of the
station address of the
Check rotary switches
host controller, and reset
S1 and S2 to see if the
rotary switches S1 and S2
station address is
to change the address to
between 03 and EF.
an appropriate value
between 03 and EF.
Check the setting of the
Check to see if two or station address of the
more stations on the host controller, and reset
communications net- rotary switches S1 and S2
work have the same to change the address to
address. an appropriate value
between 03 and EF.
Check to see if the WDT
Correctly update the WDT
data is being updated at
data at the host controller.
the host controller.
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
–
occurs, the SERVOPACK
may be faulty. Replace the
SERVOPACK.
Check to see if the WDT
Correctly update the WDT
data is being updated in
data at the host controller.
the host controller.
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
–
occurs, the SERVOPACK
may be faulty. Replace the
SERVOPACK.
Correct the MECHA-
TROLINK Communica-
Check the MECHA-
tions Cable wiring.
TROLINK wiring.
Correctly connect the ter-
minator.
Implement countermea-
sures against noise.
(Check the MECHA-
TROLINK Communica-
tions Cable and FG
–
wiring, and implement
measures such as attach-
ing a ferrite core to the
MECHATROLINK Com-
munications Cable.)
Turn the power supply to
the SERVOPACK OFF and
ON again. If an alarm still
–
occurs, the SERVOPACK
may be faulty. Replace the
SERVOPACK.
Continued from previous page.
Correction Reference
page 5-12
–
–
–
–
–
–
–
Continued on next page.